AGIC Capital (AGIC), a growth-oriented private equity firm with $2.2 billion of assets under management, announced that it had acquired a majority stake in ATEC Pharmatechnik GmbH (ATEC). The sellers, ATEC’s founder & CEO, Hans-Werner Mumm, and family-backed Mittelstand investor HANNOVER Finanz Group, will remain invested in the Company, and Hans-Werner Mumm will continue to…